.popup {
	position: fixed;
	top: 50%;
	left: 50%;
	-webkit-transform: translate(-50%, -50%);
	transform: translate(-50%, -50%);
	padding:20px;
	border:1px solid black;
	background-color:yellow;
}

.menu_button {
	width:100%;
	margin:0.5em;
}

#photo {
	background-color:grey;
	
	max-width:100%;
	height:auto;
	display:block;
	border:1px solid grey;
	margin: 0 auto;
}